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glossary:glossary_h [2020/05/08 00:05] tgerbicglossary:glossary_h [2021/08/08 04:50] (current) – updated the wikipedia link Wayne
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 HASL, or Hot Air Solder Leveling, is a process of coating the bare copper of an etched PCB with something like solder or varnish (solder mask). This keeps the PCB traces from oxidising over time, which makes the traces harder to solder to.  HASL, or Hot Air Solder Leveling, is a process of coating the bare copper of an etched PCB with something like solder or varnish (solder mask). This keeps the PCB traces from oxidising over time, which makes the traces harder to solder to. 
 The standard HASL provided by Chinese manufacturers is leaded solder. More expensive options are lead free solder, organic solderable varnish stuff, nickel, or gold flash.\\ The standard HASL provided by Chinese manufacturers is leaded solder. More expensive options are lead free solder, organic solderable varnish stuff, nickel, or gold flash.\\
-[[https://en.wikipedia.org/wiki/Hot_air_solder_leveling|Hot Air Solder Leveling]]\\+[[wp>Hot_air_solder_leveling|Hot Air Solder Leveling]]\\
      
 ===== Header plug or socket ===== ===== Header plug or socket =====
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 Scale and gauge common in America, Asia and Europe but excluding UK. The scale is represented by the ratio 1:87 (3.5mm to the foot). The standard track gauge (width) is 16.5 mm (represents 1/87th of 1435mm). Scale and gauge common in America, Asia and Europe but excluding UK. The scale is represented by the ratio 1:87 (3.5mm to the foot). The standard track gauge (width) is 16.5 mm (represents 1/87th of 1435mm).
  
-===== HYPOTRAC =====+===== Hypotrac =====
  
-This a high voltage track detector system for 2 rail Model railway track , see TB T9/2 merg members only+This a high voltage track detector system for 2 rail Model railway track , see TB T09/2 merg members only
  
  
glossary/glossary_h.1588896319.txt.gz · Last modified: 2020/05/08 00:05 by tgerbic

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